Re:Mapping the World
by jpatokal on Wednesday January 07, 2015 @07:22PM
(#8854272)
As far as I can tell, they're only using Google Maps for the display layer, the actual polygons are entirely theirs.
[ Parent
| on HN ]
If you draw polygons based on what you see on Google Maps (or any other copyrighted map), your polygons might be found to be a derived work of the original Google Map.
Otherwise, you could just trace all the roads on Google Maps to make your own $BLAH Maps, that's obviously not legal.